/*
 * This file is part of buteo-syncfw package
 *
 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 *
 * Contact: Sateesh Kavuri <sateesh.kavuri@nokia.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * version 2.1 as published by the Free Software Foundation.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#include "ServerPluginRunner.h"
#include "ServerThread.h"
#include "ServerActivator.h"
#include "ServerPlugin.h"
#include "LogMacros.h"
#include "PluginManager.h"

using namespace Buteo;

ServerPluginRunner::ServerPluginRunner(const QString &aPluginName,
                                       Profile *aProfile, PluginManager *aPluginMgr, PluginCbInterface *aPluginCbIf,
                                       ServerActivator *aServerActivator, QObject *aParent)
    : PluginRunner(PLUGIN_SERVER, aPluginName, aPluginMgr, aPluginCbIf, aParent)
    , iProfile(aProfile)
    , iPlugin(nullptr)
    , iThread(nullptr)
    , iServerActivator(aServerActivator)
{
    FUNCTION_CALL_TRACE(lcButeoTrace);
}

ServerPluginRunner::~ServerPluginRunner()
{
    FUNCTION_CALL_TRACE(lcButeoTrace);

    stop();
    disconnect();

    if (iPlugin && iPluginMgr) {
        iPluginMgr->destroyServer(iPlugin);
        iPlugin = nullptr;
    }

    delete iThread;
    iThread = nullptr;

    delete iProfile;
    iProfile = nullptr;
}

bool ServerPluginRunner::init()
{
    FUNCTION_CALL_TRACE(lcButeoTrace);

    if (iInitialized)
        return true;

    if (iPluginMgr == nullptr || iPluginCbIf == nullptr || iProfile == nullptr) {
        qCWarning(lcButeoMsyncd) << "Invalid members, failed to initialize";
        return false;
    }

    iPlugin = iPluginMgr->createServer(iPluginName, *iProfile, iPluginCbIf);
    if (iPlugin == nullptr) {
        qCWarning(lcButeoMsyncd) << "Failed to create server plug-in:" << iPluginName;
        return false;
    }

    iThread = new ServerThread();

    // Pass connectivity state change signal to the plug-in.
    connect(this, SIGNAL(connectivityStateChanged(Sync::ConnectivityType, bool)),
            iPlugin, SLOT(connectivityStateChanged(Sync::ConnectivityType, bool)));

    connect(iPlugin, SIGNAL(newSession(const QString &)),
            this, SLOT(onNewSession(const QString &)));

    // Connect signals from the plug-in.

    connect(iPlugin,
            SIGNAL(transferProgress(const QString &, Sync::TransferDatabase, Sync::TransferType, const QString &, int)),
            this,
            SLOT(onTransferProgress(const QString &, Sync::TransferDatabase, Sync::TransferType, const QString &, int)));

    connect(iPlugin, &ServerPlugin::error, this, &ServerPluginRunner::onError);

    connect(iPlugin, SIGNAL(success(const QString &, const QString &)),
            this, SLOT(onSuccess(const QString &, const QString &)));

    connect(iPlugin, SIGNAL(accquiredStorage(const QString &)),
            this, SLOT(onStorageAccquired(const QString &)));

    connect(iPlugin, SIGNAL(syncProgressDetail(const QString &, int)),
            this, SIGNAL(syncProgressDetail(const QString &, int)));

    // Connect signals from the thread.

    connect(iThread, &ServerThread::initError, this, &ServerPluginRunner::onError);

    connect(iThread, SIGNAL(finished()), this, SLOT(onThreadExit()));

    iInitialized = true;

    return true;
}

bool ServerPluginRunner::start()
{
    FUNCTION_CALL_TRACE(lcButeoTrace);

    bool rv = false;
    if (iInitialized && iThread) {
        rv = iThread->startThread(iPlugin);
        qCDebug(lcButeoMsyncd) << "ServerPluginRunner started thread for plugin:" << iPlugin->getProfileName()
                               << ", returning:" << rv;
    }

    return rv;
}

void ServerPluginRunner::stop()
{
    FUNCTION_CALL_TRACE(lcButeoTrace);

    // Disconnect all signals from this object to the plug-in.
    disconnect(this, 0, iPlugin, 0);

    if (iThread) {
        iThread->stopThread();
        iThread->wait();
    }
}

void ServerPluginRunner::abort(Sync::SyncStatus aStatus)
{
    FUNCTION_CALL_TRACE(lcButeoTrace);

    if (iPlugin) {
        iPlugin->abortSync(aStatus);
    }
}

void ServerPluginRunner::suspend()
{
    FUNCTION_CALL_TRACE(lcButeoTrace);

    if (iPlugin) {
        iPlugin->suspend();
    }
}

void ServerPluginRunner::resume()
{
    FUNCTION_CALL_TRACE(lcButeoTrace);

    if (iPlugin) {
        iPlugin->resume();
    }
}

SyncPluginBase *ServerPluginRunner::plugin()
{
    FUNCTION_CALL_TRACE(lcButeoTrace);

    return iPlugin;
}

SyncResults ServerPluginRunner::syncResults()
{
    FUNCTION_CALL_TRACE(lcButeoTrace);

    if (iPlugin) {
        return iPlugin->getSyncResults();
    } else {
        return SyncResults();
    }
}

bool ServerPluginRunner::cleanUp()
{
    FUNCTION_CALL_TRACE(lcButeoTrace);

    bool retval = false;
    if (iPlugin) {
        retval = iPlugin->cleanUp();
    }
    return retval;
}

void ServerPluginRunner::onNewSession(const QString &aDestination)
{
    // Add reference to the server plug-in, so that the plug-in
    // will not be stopped when there is a session running.
    if (iServerActivator) {
        iServerActivator->addRef(plugin()->getProfileName());
    }

    emit newSession(aDestination);
}

void ServerPluginRunner::onTransferProgress(const QString &aProfileName,
                                            Sync::TransferDatabase aDatabase, Sync::TransferType aType,
                                            const QString &aMimeType, int aCommittedItems)
{
    FUNCTION_CALL_TRACE(lcButeoTrace);

    emit transferProgress(aProfileName, aDatabase, aType, aMimeType, aCommittedItems);
}

void ServerPluginRunner::onError(const QString &aProfileName,
                                 const QString &aMessage, SyncResults::MinorCode aErrorCode)
{
    FUNCTION_CALL_TRACE(lcButeoTrace);

    emit error(aProfileName, aMessage, aErrorCode);

    onSessionDone();
}

void ServerPluginRunner::onSuccess(const QString &aProfileName,
                                   const QString &aMessage)
{
    FUNCTION_CALL_TRACE(lcButeoTrace);

    emit success(aProfileName, aMessage);

    onSessionDone();
}

void ServerPluginRunner::onStorageAccquired(const QString &aMimeType)
{
    FUNCTION_CALL_TRACE(lcButeoTrace);

    emit storageAccquired(aMimeType);
}

void ServerPluginRunner::onThreadExit()
{
    FUNCTION_CALL_TRACE(lcButeoTrace);

    emit done();
}

void ServerPluginRunner::onSessionDone()
{
    FUNCTION_CALL_TRACE(lcButeoTrace);

    // Remove reference to the server plug-in. This may result in stopping
    // the server plug-in, if it doesn't need to be active any more.

#if 0
    // SyncML Server plugin should not die after one single session
    // Don't think removing the server reference is useful
    if (iServerActivator != 0) {
        iServerActivator->removeRef(plugin()->getProfileName());
    }
#endif
}
